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Perimeter Weeping Tile Pipe Segment Calculator

Calculate how many standard-length pipe segments are needed for a foundation perimeter weeping tile (footing drain) run.

Computed in your browser — nothing you enter is uploaded. Figures are presented for United States against IRC 2024, and every formula is cited under regulatory standards below.

Last verified 2026-08-26 · v1.0.0

Market
Imperial · sales tax

Pipe segments needed

15 segments

High confidence

For the dimensions entered, expect a pipe segments needed of 15. Set for United States against IRC 2024. The market selector changes both the units and the code cited.

Estimated cost — your price

This site holds no price list for this material — local prices vary too much to publish honestly. Enter your supplier's price and the result is costed with it.

Preliminary estimate, not certified engineering. This tool produces an indicative quantity calculation for planning purposes only — it is not a certified structural analysis, a guaranteed material takeoff, or a substitute for building department approval. Always verify measurements on-site and have a licensed contractor or structural engineer review any load-bearing, code-sensitive, or safety-critical work before purchasing materials or starting construction. Spotted an arithmetic or standards error? Report it to contact@craftquantities.com with your inputs — confirmed fixes become pinned regression tests.

[Schema Verified] Computed in alignment with American Concrete Institute (ACI 318-19) formulas and International Residential Code (IRC 2024) spatial boundaries.

Regulatory standards & verification citations

  • Segment count = ceil(foundation perimeter ÷ standard pipe segment length), the standard method for estimating pipe segments along a continuous perimeter drain run

Your workspace

Most jobs need more than one number. Add the calculators you need next and they open right here, underneath this one — your figures stay on screen and nothing is lost to a page change.

Frequently asked questions

Why round up to a whole number of segments?
Pipe segments are sold in fixed stock lengths, so any partial length remaining still requires cutting from a full segment — rounding up ensures enough material is purchased to complete the run.
Does this include fittings like corners, tees, or a sump connection?
No — this calculates the base linear pipe quantity only. Corner elbows, tee connections, and the fittings needed to route the drain to a sump pit or daylight outlet should be counted separately based on your layout.
Should I add extra for overlap at joints?
This calculator assumes segments are butted or coupled end-to-end with negligible overlap. If your connection method requires overlap or a coupling that consumes pipe length, add a small allowance to the foundation perimeter before calculating.